Question

我正在学习使用sql表中的值进行下拉。

我有两个下拉菜单：家庭成员和宗喀格。第一个工作正常，但是第二个下拉菜单无效。我在第二次沉没中使用了相同的代码，但是它不起作用。

尝试

enter<!DOCTYPE html>
  <html lang="en">
  <head>
  <meta charset="UTF-8">
  `enter code here`<title>Add Record Form</title>
  </head>
  <body>

  <form action="addlandac.php" method="post">
    <p>
    <label for="plotno">Plot no:</label>
    <input type="text" name="plotno" id="plotno">
    <label for="thramno">Thram No:</label>
    <input type="text" name="thramno" id="thramno">

 <label for="familyname">Name of family:</label>
 <?php include("config_qc.php");

  $query="SELECT * FROM familymember_tbl";
 $result =mysqli_query($connect,$query);
 $options="";
 while ($row=mysqli_fetch_array($result,MYSQLI_ASSOC)) {

 $famid=$row["familyID"];
 $nam=$row["name"];
//$options.="<OPTION VALUE=\"$dzong\">".$dzong.'-'.$dz_id.'</option>';
$options.="<OPTION VALUE>".$nam.'-'.$famid.'</option>';

}
?>
 <select name="family" id="family">
<option value="Select">Select family member</option>
<?=$options?>

//</p>
//<p>

 <label for="dz">Dzonkhag:</label>
<?php include("config_qc.php");
$query="SELECT * FROM dzongkhag_tbl";
$result =mysqli_query($connect,$query);
$opt="";
while ($row=mysqli_fetch_array($result,MYSQLI_ASSOC)) {

$dz_id=$row["dzID"];
$dzong=$row["dzname"];
//$options.="<OPTION VALUE=\"$dzong\">".$dzong.'-'.$dz_id.'</option>';
$opt.="<OPTION VALUE>".$dzong.'-'.$dz_id.'</option>';
}
?>
 <select name="dz" id="dz">
 <option value="Select">Select Dzongkhag</option>
 <?=$opt?>

 <input type="submit" value="Submit">

 </form>
 </body>
 </html>

 <?php
 echo "<BR>";
 echo"<h4 align=left </h4>";
echo "<BR>";
 echo "<a href='menu.php'>Bac to Main page</a>";
?>

Answer 1

不确定，但是也许您缺少一些封闭的</select>标签。也许尝试以下方法：

<!DOCTYPE html>
  <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Add Record Form</title>
    </head>
   <body>
       <form action="addlandac.php" method="post">
            <label for="plotno">Plot no:</label>
            <input type="text" name="plotno" id="plotno">
            <label for="thramno">Thram No:</label>
            <input type="text" name="thramno" id="thramno">

            <label for="familyname">Name of family:</label>
            <?php include("config_qc.php");

            $query="SELECT * FROM familymember_tbl";
            $result =mysqli_query($connect,$query);
            $options="";
            while ($row=mysqli_fetch_array($result,MYSQLI_ASSOC)) {
                $famid=$row["familyID"];
                $nam=$row["name"];
                $options.="<OPTION VALUE>".$nam.'-'.$famid.'</option>';
            }
            ?>
            <select name="family" id="family">
                <option value="Select">Select family member</option>
                <?=$options?>
            </select>

             <label for="dz">Dzonkhag:</label>
            <?php include("config_qc.php");
            $query="SELECT * FROM dzongkhag_tbl";
            $result =mysqli_query($connect,$query);
            $opt="";
            while ($row=mysqli_fetch_array($result,MYSQLI_ASSOC)) {
                $dz_id=$row["dzID"];
                $dzong=$row["dzname"];
                $opt.="<OPTION VALUE>".$dzong.'-'.$dz_id.'</option>';
            }
            ?>

            <select name="dz" id="dz">
                <option value="Select">Select Dzongkhag</option>
                <?=$opt?>
            </select>
            <input type="submit" value="Submit">

         </form>

        <?php
        echo "<BR>";
        echo"<h4 align=left </h4>";
        echo "<BR>";
        echo "<a href='menu.php'>Bac to Main page</a>";
        ?>
     </body>
 </html>

或类似的东西

<!DOCTYPE html>
  <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Add Record Form</title>
    </head>
   <body>
       <form action="addlandac.php" method="post">
            <label for="plotno">Plot no:</label>
            <input type="text" name="plotno" id="plotno">
            <label for="thramno">Thram No:</label>
            <input type="text" name="thramno" id="thramno">

            <label for="familyname">Name of family:</label>
            <?php 
                include("config_qc.php");

                $query="SELECT * FROM familymember_tbl";
                $result =mysqli_query($connect,$query);
                $options="";
                while ($row=mysqli_fetch_array($result,MYSQLI_ASSOC)) {
                    $famid=$row["familyID"];
                    $nam=$row["name"];
                    $options.="<option value="'.$nam.'-'.$famid.'">"'.$nam.'-'.$famid.'"</option>";
                }
            ?>
            <select name="family" id="family">
                <option value="Select family member">Select family member</option>
                <?=$options?>
            </select>

             <label for="dz">Dzonkhag:</label>
            <?php 
                include("config_qc.php");
                $query="SELECT * FROM dzongkhag_tbl";
                $result =mysqli_query($connect,$query);
                $opt="";
                while ($row=mysqli_fetch_array($result,MYSQLI_ASSOC)) {
                    $dz_id=$row["dzID"];
                    $dzong=$row["dzname"];
                    $opt.="<option value="'.$dzong.'-'.$dz_id.'">"'.$dzong.'-'.$dz_id.'"</option>";
                }
            ?>

            <select name="dz" id="dz">
                <option value="Select Dzongkhag">Select Dzongkhag</option>
                <?=$opt?>
            </select>
            <input type="submit" value="Submit">

         </form>

        <?php echo "<br><h4 align=left </h4><br><a href='menu.php'>Back to main page</a>"; ?>
     </body>
 </html>

如何在PHP中制作两个类似的下拉列表？

尝试

1 个答案: